TMPGEnc DVD Author - Missing Audio

[katana]

I have a DVD folder with vob files etc that was outputted through DVDShrink, and originally came from a stand-alone DVD recorder.
I know there's audio because I can hear it in my software DVD player etc. In DVD Shrink, the audio is listed as an AC3 stream. However opening it in TMPGEnc DVD Author seems to show no audio stream. In the 'Add Clip' tab, the 'Audi Input File name' is 'unspecified', and the 'Audio input format' states there is 'no audio'.
Is there any way to get the audio to display properly in TMPGEnc DVD Author, so I can author a DVD?
Thanks in advance for any advice/help.

[LT. Columbo]

do you have the TMPGEnc AC3 plug-in installed or AC3ACM decompressor?

[katana]

Thanks for your reply.
I am using an old Version of TMPGENc DVD Author (v. 1.0.10.36).
I am not really sure how to check if I have "TMPGEnc AC3 plug-in...or AC3ACM decompressor" installed? Presumably I do, since previously TMPGENc DVD Author has been able to cope OK with Dolby Digital AC-3 from the same source (a stand-alone DVD recorder).

[benbryant]

To check if your TMPGENc DVD Author comes with TMPGEnc AC3 plug-in, go to Options > About TMPGENc DVD Author. At the bottom of the About TMPGENc DVD Author dialog, it clearly says AC3 plugin is recognized

Regards

[katana]

Checked as per your instructions, and it appears I don't have the AC3 plug-in installed. Funny thing is, on some DVDs with AC3, TMPEGENc DVD Author seems to be able to handle them ok. Am looking at one now I authored successfully with an 'AC3 2-ch' stream.
Thanks anyway.